2008 3500 170"ext. 3.0 V6 OM642.993
Simple to test: • thump the inlet tube. A proper installed / true to form inlet tube will thump like a ripe melon. Just putting your hands on the tube can indicate if both its ends are firmly attached or not.I gave it a look in between, and did not see anything obvious.
remember the other end of the turbo inlet tube is clamped to the air filter housing.